My spinner (taking the folding prop with it) separated from the motor shaft on my last flight (must have come loose and just spun off during a climb -- not to be found in the field).

I'm curious, what do you guys suggest for checking the tightness of the spinner to the motor shaft? Do you check it or torque it down often?

What brand do you guys suggest? I see Esprit Models web site shows a BB Aluminum Spinner for folding props that allows the system to be tightened with an alan screw from the tip of the nose cone (thus not having to remove the cone). Does anyone have experience with this setup?

I have a 10 ft wing span and used a 16x8 prop. My set up would allow me to climb at 70-80 degrees up.

i use RFM spinners from soaring USA. a bit pricey, but cheap when you consider the loss of a folding prop. i gave up on collets and lock tite.
only use the set screw on one side and tighten on the flat. if the shaft does not have a flat, grind one. never lost any thing since i switched. i gleened thi info from an avid F5B(BLOW TOURCH} flyer. ken